5 ms·

Tokyo released point cloud data of the entire city for free

314 points by taubek 2y ago

_____k 2y ago
Link: https://info.tokyo-digitaltwin.metro.tokyo.lg.jp/3dmodel/ https://info.tokyo-digitaltwin.metro.tokyo.lg.jp/3dmodel/
- Retr0id 2y ago
  What do I need to click to get the pointcloud version? I'm just getting regular untextured polygons.
  - Timon3 2y ago
    The table "Posted data on 3D Viewer" contains a row "Point cloud data" with several links, e.g. "Viewing the LP point cloud of the Tokyo Metropolitan Government area in the viewer": https://3dview.tokyo-digitaltwin.metro.tokyo.lg.jp/#share=s-2giAhjomQOWa7lmn https://3dview.tokyo-digitaltwin.metro.tokyo.lg.jp/#share=s-...
  - numpad0 2y ago
    Supposed to be [1][2] according to [0] but only by lots of clicking through GUI? It's really intuitive. GSI(Geospatial Information Authority of Japan) download site is a lot better, though they're more geography focused. 0: https://twitter.com/tocho_digital/status/1697474739583746474 https://twitter.com/tocho_digital/status/1697474739583746474 1: https://catalog.data.metro.tokyo.lg.jp/dataset/t000029d0000000019 https://catalog.data.metro.tokyo.lg.jp/dataset/t000029d00000... 2: https://catalog.data.metro.tokyo.lg.jp/dataset/t000029d0000000020 https://catalog.data.metro.tokyo.lg.jp/dataset/t000029d00000... 3: https://fgd.gsi.go.jp/download/menu.php https://fgd.gsi.go.jp/download/menu.php
bamboozled 2y ago
So fun to explore, it has to be the greatest city on earth, just a marvel in so many ways.
yieldcrv 2y ago
Feels like where Google Earth was 22 years ago
lxdlam 2y ago
I must say this is tremendous. There are many different AIGC explorations in 3D topics, with such high quality dataset, it will greatly assist current workflow and accelerate the 3D creative evolution.
JCharante 2y ago
Great for cgi and video games
cpa 2y ago
In france, the national geodata institute (IGN) has captured lidar data of the whole country (20 points per km2 if memory serves, in the OP it’s 30p per km2). https://diffusion-lidarhd.ign.fr/visionneuse/?copc=https:%2F%2Fstorage.sbg.cloud.ovh.net%2Fv1%2FAUTH_63234f509d6048bca3c9fd7928720ca1%2Fppk-lidar%2FLP%2FLHD_FXX_0701_6332_PTS_O_LAMB93_IGN69.copc.laz https://diffusion-lidarhd.ign.fr/visionneuse/?copc=https:%2F...
reustle 2y ago
https://www.swisstopo.admin.ch/en/switzerland-in-3d https://www.swisstopo.admin.ch/en/switzerland-in-3d > Switzerland is one of the first countries to possess a detailed 3D buildings model covering the whole country. This digital model of Switzerland consists of approx. 70 million 3D objects. Besides every single building in Switzerland and the Principality of Liechtenstein, bridges, cable cars, forests, individual trees and geographical names are also represented in 3D. Two movement modes enable interactive navigation through space. Discover digital Switzerland from the air in flight mode or take a virtual stroll around a 3D model of your own village or neighbourhood.
- cdaringe 2y ago
  Crashed on my old iPhone 6SE, but could tell it was getting cool!
- rnewme 2y ago
  This might be a stupid question, but isn't Switzerland known for its countless hidden bunkers and defense positions? Doesn't mapping and publicly exposing basically the whole country only bring negatives and nothing positive?
  - notesinthefield 2y ago
    One would reasonably assume threats could map surface-level objects from orbit. The Swiss (I hope) would consider this and react accordingly.
  - jajko 2y ago
    I have one of such fortifications, called Toblerone line, running around our place in canton Vaud. The whole line is maybe 15km long from Geneva lake up the Jura mountains, made up from concrete spikes (even raisable in the middle of roads), blowable bridges and around 15 tiny concrete fortresses (fortinettes), all in plain sight, mostly visible on google maps/street view. All built around 1930s. There is popular hiking trail along all this, since nature and forests around it are pretty and well maintained. No secret really. Same for many other old stuff. New stuff should be hidden on bases/remote places. Btw checked our building and surrounding ones and its pretty precise but not up to date with 2024 finished construction.
yarri 2y ago
Background on the Tokyo government’s digital twin program, including sourcing and maintenance efforts https://github.com/tokyo-digitaltwin/roadmap_v1.0/blob/main/Roadmap%20for%20the%20Social%20Implementation%20of%20Digital%20Twin%20First%20Edition.md https://github.com/tokyo-digitaltwin/roadmap_v1.0/blob/main/...
Havoc 2y ago
How do they collect point cloud data at scale?
- lbotos 2y ago
  speculating: Lidar from a plane? https://www.reddit.com/r/Albany/comments/1hdxkz0/comment/m1zkcun/ https://www.reddit.com/r/Albany/comments/1hdxkz0/comment/m1z... Imagine a route like this, except many lanes. I was trying to find a pic I saw the other day of one over NYC
  - lbotos 2y ago
    slightly better: https://www.reddit.com/r/flightradar24/comments/u59zc2/off_the_florida_coast_holy_loops_im_relatively/ https://www.reddit.com/r/flightradar24/comments/u59zc2/off_t... https://www.yellowscan.com/knowledge/drone-flight-planners-the-continuing-integration-of-lidar-and-uavs/ https://www.yellowscan.com/knowledge/drone-flight-planners-t...
  - anakaine 2y ago
    I do this sort of stuff for work. Plane borne lidar is typically only part of the answer, and usually a hybrid acquisition model is required.
    - toomuchtodo 2y ago
      Are there drones that can provide similar products at parity (versus needing aircraft)?
- araes 2y ago
  Here's a link to the people out of Huntsville, AL who do a lot of survey acquisition work in America, and did the collection effort noted in the Reddit post below. [1] The About Us video shows some of the planes, equipment, collection flights, survey patterns, and data applications for the collection efforts. Other pages have notes on the planes and work done. [1] Revolution Flight, Survey Subunit, https://www.surveyaircraft.com/about-us https://www.surveyaircraft.com/about-us
nullhole 2y ago
Free reminder that the USGS is involved in an epic, nearly decade-long collection of mid- and high- density lidar of the entire continental USA, and the QC'd data (point cloud & derived) is published gratis for everyone to use: https://www.usgs.gov/3d-elevation-program https://www.usgs.gov/3d-elevation-program https://www.usgs.gov/media/images/3d-elevation-program-fy25-partnerships https://www.usgs.gov/media/images/3d-elevation-program-fy25-... https://www.usgs.gov/3d-elevation-program/3dep-spatial-metadata https://www.usgs.gov/3d-elevation-program/3dep-spatial-metad...
MaleekHoltkamp 2y ago
[dead]
RicoElectrico 2y ago
[flagged]
- fngjdflmdflg 2y ago
  Now we just need the comment telling us why only Japan was able to accomplish this task, or how their implementation is 100x better than any others.
- whamlastxmas 2y ago
  Japan is a super cool and unique place in terms of aesthetic and culture. I don’t see any problem in people celebrating that
- aprilthird2021 2y ago
  Tokyo is one of the biggest, most visited, and most well known cities in the world. I don't think this is warranted
Dig1t 2y ago
I would love to use point cloud data like this to make a map for a video game. What is the state of the art for turning point cloud data into 3D models? Anyone know what the best of the best is?
- fsloth 2y ago
  What would the game be like? There are many ways to get as-built buildings at scale from existing datasets. For example there are cesium tiles. OSM data contains footprint polygons with height which means extrusion is trivial. To explore know production algorithms for pointcloud-to-mesh check out the ones provided in cloudcompare and meshlab and see if any fit your purpose. Afaik there is no one objectively best recipe so you need to know what you want and be aware of the tradeoffs and constraints. Note that for real time large scale cityscapes for complex buildings you likely need lods, impostors etc - which you don’t get for free. If you use just polygon extrusions you can likely bucket like a square kilometer of buildings to a drawcall (or more).
- Stevvo 2y ago
  Simplygon is used in MS Flight Simulator bcs it can generate seamless LODs. LOD 0 can simply be a Delaunay triangulation.
RandomBK 2y ago
A couple of cities have been doing this as well. Vancouver Canada has lidar point clouds covering the entire city, going back to 2013. [0] https://opendata.vancouver.ca/explore/dataset/lidar-2022/information/ https://opendata.vancouver.ca/explore/dataset/lidar-2022/inf... [1] https://x.com/edwardjxli/status/1871676981143875725 https://x.com/edwardjxli/status/1871676981143875725
ranger_danger 2y ago
Login-walled. Anyone have an archive that doesn't require endless cloudflare captchas (looking at you, archive.ph)?
- confooseddd 2y ago
  xcancel.com with proxy enabled in its setting for media seems to work
lilalomoslama 2y ago
some parts of germany are also available. some buildings are simple, some have a really good 3d model. for example here is the data for bavaria https://geodaten.bayern.de/opengeodata/OpenDataDetail.html?pn=lod2 https://geodaten.bayern.de/opengeodata/OpenDataDetail.html?p...

314 points by taubek 2y ago

Link: https://info.tokyo-digitaltwin.metro.tokyo.lg.jp/3dmodel/ https://info.tokyo-digitaltwin.metro.tokyo.lg.jp/3dmodel/

Retr0id 2y ago
What do I need to click to get the pointcloud version? I'm just getting regular untextured polygons.
- Timon3 2y ago
  The table "Posted data on 3D Viewer" contains a row "Point cloud data" with several links, e.g. "Viewing the LP point cloud of the Tokyo Metropolitan Government area in the viewer": https://3dview.tokyo-digitaltwin.metro.tokyo.lg.jp/#share=s-2giAhjomQOWa7lmn https://3dview.tokyo-digitaltwin.metro.tokyo.lg.jp/#share=s-...
- numpad0 2y ago
  Supposed to be [1][2] according to [0] but only by lots of clicking through GUI? It's really intuitive. GSI(Geospatial Information Authority of Japan) download site is a lot better, though they're more geography focused. 0: https://twitter.com/tocho_digital/status/1697474739583746474 https://twitter.com/tocho_digital/status/1697474739583746474 1: https://catalog.data.metro.tokyo.lg.jp/dataset/t000029d0000000019 https://catalog.data.metro.tokyo.lg.jp/dataset/t000029d00000... 2: https://catalog.data.metro.tokyo.lg.jp/dataset/t000029d0000000020 https://catalog.data.metro.tokyo.lg.jp/dataset/t000029d00000... 3: https://fgd.gsi.go.jp/download/menu.php https://fgd.gsi.go.jp/download/menu.php

bamboozled 2y ago

So fun to explore, it has to be the greatest city on earth, just a marvel in so many ways.

yieldcrv 2y ago

Feels like where Google Earth was 22 years ago

lxdlam 2y ago

I must say this is tremendous. There are many different AIGC explorations in 3D topics, with such high quality dataset, it will greatly assist current workflow and accelerate the 3D creative evolution.

JCharante 2y ago

Great for cgi and video games

cpa 2y ago

In france, the national geodata institute (IGN) has captured lidar data of the whole country (20 points per km2 if memory serves, in the OP it’s 30p per km2). https://diffusion-lidarhd.ign.fr/visionneuse/?copc=https:%2F%2Fstorage.sbg.cloud.ovh.net%2Fv1%2FAUTH_63234f509d6048bca3c9fd7928720ca1%2Fppk-lidar%2FLP%2FLHD_FXX_0701_6332_PTS_O_LAMB93_IGN69.copc.laz https://diffusion-lidarhd.ign.fr/visionneuse/?copc=https:%2F...

reustle 2y ago

https://www.swisstopo.admin.ch/en/switzerland-in-3d https://www.swisstopo.admin.ch/en/switzerland-in-3d > Switzerland is one of the first countries to possess a detailed 3D buildings model covering the whole country. This digital model of Switzerland consists of approx. 70 million 3D objects. Besides every single building in Switzerland and the Principality of Liechtenstein, bridges, cable cars, forests, individual trees and geographical names are also represented in 3D. Two movement modes enable interactive navigation through space. Discover digital Switzerland from the air in flight mode or take a virtual stroll around a 3D model of your own village or neighbourhood.

cdaringe 2y ago
Crashed on my old iPhone 6SE, but could tell it was getting cool!
rnewme 2y ago
This might be a stupid question, but isn't Switzerland known for its countless hidden bunkers and defense positions? Doesn't mapping and publicly exposing basically the whole country only bring negatives and nothing positive?
- notesinthefield 2y ago
  One would reasonably assume threats could map surface-level objects from orbit. The Swiss (I hope) would consider this and react accordingly.
- jajko 2y ago
  I have one of such fortifications, called Toblerone line, running around our place in canton Vaud. The whole line is maybe 15km long from Geneva lake up the Jura mountains, made up from concrete spikes (even raisable in the middle of roads), blowable bridges and around 15 tiny concrete fortresses (fortinettes), all in plain sight, mostly visible on google maps/street view. All built around 1930s. There is popular hiking trail along all this, since nature and forests around it are pretty and well maintained. No secret really. Same for many other old stuff. New stuff should be hidden on bases/remote places. Btw checked our building and surrounding ones and its pretty precise but not up to date with 2024 finished construction.

yarri 2y ago

Background on the Tokyo government’s digital twin program, including sourcing and maintenance efforts https://github.com/tokyo-digitaltwin/roadmap_v1.0/blob/main/Roadmap%20for%20the%20Social%20Implementation%20of%20Digital%20Twin%20First%20Edition.md https://github.com/tokyo-digitaltwin/roadmap_v1.0/blob/main/...

Havoc 2y ago

How do they collect point cloud data at scale?

lbotos 2y ago
speculating: Lidar from a plane? https://www.reddit.com/r/Albany/comments/1hdxkz0/comment/m1zkcun/ https://www.reddit.com/r/Albany/comments/1hdxkz0/comment/m1z... Imagine a route like this, except many lanes. I was trying to find a pic I saw the other day of one over NYC
- lbotos 2y ago
  slightly better: https://www.reddit.com/r/flightradar24/comments/u59zc2/off_the_florida_coast_holy_loops_im_relatively/ https://www.reddit.com/r/flightradar24/comments/u59zc2/off_t... https://www.yellowscan.com/knowledge/drone-flight-planners-the-continuing-integration-of-lidar-and-uavs/ https://www.yellowscan.com/knowledge/drone-flight-planners-t...
- anakaine 2y ago
  I do this sort of stuff for work. Plane borne lidar is typically only part of the answer, and usually a hybrid acquisition model is required.
  - toomuchtodo 2y ago
    Are there drones that can provide similar products at parity (versus needing aircraft)?
araes 2y ago
Here's a link to the people out of Huntsville, AL who do a lot of survey acquisition work in America, and did the collection effort noted in the Reddit post below. [1] The About Us video shows some of the planes, equipment, collection flights, survey patterns, and data applications for the collection efforts. Other pages have notes on the planes and work done. [1] Revolution Flight, Survey Subunit, https://www.surveyaircraft.com/about-us https://www.surveyaircraft.com/about-us

nullhole 2y ago

Free reminder that the USGS is involved in an epic, nearly decade-long collection of mid- and high- density lidar of the entire continental USA, and the QC'd data (point cloud & derived) is published gratis for everyone to use: https://www.usgs.gov/3d-elevation-program https://www.usgs.gov/3d-elevation-program https://www.usgs.gov/media/images/3d-elevation-program-fy25-partnerships https://www.usgs.gov/media/images/3d-elevation-program-fy25-... https://www.usgs.gov/3d-elevation-program/3dep-spatial-metadata https://www.usgs.gov/3d-elevation-program/3dep-spatial-metad...

MaleekHoltkamp 2y ago

[dead]

RicoElectrico 2y ago

[flagged]

fngjdflmdflg 2y ago
Now we just need the comment telling us why only Japan was able to accomplish this task, or how their implementation is 100x better than any others.
whamlastxmas 2y ago
Japan is a super cool and unique place in terms of aesthetic and culture. I don’t see any problem in people celebrating that
aprilthird2021 2y ago
Tokyo is one of the biggest, most visited, and most well known cities in the world. I don't think this is warranted

Dig1t 2y ago

I would love to use point cloud data like this to make a map for a video game. What is the state of the art for turning point cloud data into 3D models? Anyone know what the best of the best is?

fsloth 2y ago
What would the game be like? There are many ways to get as-built buildings at scale from existing datasets. For example there are cesium tiles. OSM data contains footprint polygons with height which means extrusion is trivial. To explore know production algorithms for pointcloud-to-mesh check out the ones provided in cloudcompare and meshlab and see if any fit your purpose. Afaik there is no one objectively best recipe so you need to know what you want and be aware of the tradeoffs and constraints. Note that for real time large scale cityscapes for complex buildings you likely need lods, impostors etc - which you don’t get for free. If you use just polygon extrusions you can likely bucket like a square kilometer of buildings to a drawcall (or more).
Stevvo 2y ago
Simplygon is used in MS Flight Simulator bcs it can generate seamless LODs. LOD 0 can simply be a Delaunay triangulation.

RandomBK 2y ago

A couple of cities have been doing this as well. Vancouver Canada has lidar point clouds covering the entire city, going back to 2013. [0] https://opendata.vancouver.ca/explore/dataset/lidar-2022/information/ https://opendata.vancouver.ca/explore/dataset/lidar-2022/inf... [1] https://x.com/edwardjxli/status/1871676981143875725 https://x.com/edwardjxli/status/1871676981143875725

ranger_danger 2y ago

confooseddd 2y ago
xcancel.com with proxy enabled in its setting for media seems to work

lilalomoslama 2y ago

some parts of germany are also available. some buildings are simple, some have a really good 3d model. for example here is the data for bavaria https://geodaten.bayern.de/opengeodata/OpenDataDetail.html?pn=lod2 https://geodaten.bayern.de/opengeodata/OpenDataDetail.html?p...